* {
  margin: 0;
}
body {
  background: black;
}
#canvas1 {
  /* background-color: blue; */
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 5px solid white;
  max-width: 100%;
  max-height: 100%;
}
#playerImage,#backgroundImage,#enemyImage {
  display: none;
}
#fullScreenButton {
  position: absolute;
  font-size: 20px;
  padding: 10px;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
}